Gearing.



H. F. SNYDER.

GEARING.

APPLICATION FILED MAR. 11. I915.

Patented Dec. 26, 1916.

2 SHEETS-SHEET 1- 5; E 1 g t [1/2 $765565, J/w/e mfg} H. F. SNYDER.

GEARING.

' Arnlcmorg FILED MAR. 11, m5; 'Lfimfigfio Patented Dec. 26,1916;

2 5HEETS-SHEET 2..

HOWARD F. SNYDER,

ivnwron, IOWA, A CORPORATION or IOWA.

GEARING.

Specification ofLetters Patent. Patented Dec, 26, 1916;

Application filed March 11, 1915'. Serial No. 13,560.

ful Improvements in Gearing, of which the following is thespecification.

This invention relates to washing machines and gearing therefor, andparticularly to dolly construction and dolly operating mechanism forsuch machines.

It is an object of this invention to provide a dolly which acts upon theclothes from below instead of from above, whereby the action of thedolly will not be affected by the amount of clothes in the tub, and avery few clothes may be washed as perfectly as the ordinary full chargefor the machine.

It is another object of this invention to provide a gearing mechanismfor driving the dolly of a' washing machine in which said dolly will begiven a continuous periodic rotary movement in addition to itsoscillations, so that the clothes in the tub in addition to beingswished back and forth will be also continuously periodically rotated,or revolved back and forth so as to assume different positions about thetub as they are being swished back and forth therein.

Further objects and advantages of the invention will appear as thedescription to follow proceeds.

In the drawings, Figure 1 is an elevationpartly in section of thewashing machine constructed according to my invention. Fig. 2 is asectional plan view of a portion thereof. Fig. 3 is a sectional planview upon another plan of the operating mechanism for the dolly. Fig. 4is a sectional elevation of a portion of said gearing.

In the drawings 1 refers to the frame or bench of 'a washing machine,preferably made up of metallic angle bars. 2 represents the tub mountedin said frame or bench. The tub 2 it is to be particularly noted is'ofpeculiar and novel form and includes a tapered bottom 3 and a dome 4 andlid 5. It is preferablycast in one piece save for the lid, and fromaluminum. The

I bottom 6 of the tub is provided with a central aperture 7 which isclosed by the cir cular plate 8, fastened "therein by means of boltssuch as 9. Preferably cast integral with the plate 8 is the upstandingsleeve 10 having bearings .11 and 12 at its upper and lower ends inwhich is mounted the vertical dolly operating shaft 13 having upon itslower end a pinion'14 by which it is driven by mechanism and in a mannernow-to be described. I

Secured to the top of the shaft 13, as for instance by the pin 15, isthe sleeve 16 which.

overlaps the sleeve 10 and is snugly fitted thereabout on the integralcollar 17 at the bottom of the sleeve 10 whereby wabbling of the sleeve16 is prevented. The sleeve 16 is provided with a number (in thisinstance four) of blades 18 and adjacent its bottom is provided withoutstanding pins or rests 19.

The dolly proper is of a novel form comprising an elongated central hub20 having a central aperture 21 and slots 22 so as to be slidable up anddown upon the sleeve 16 and to be engaged with the blades 18 thereof toprevent rotative displacement with respect thereto. 20 are the'arms 23which are rounded on their upper surfaces, as shown at 24, and areprovided at their outer ends with the washing blades 25 which project aconsiderable distance upwardly from the arms 23 and downwardly to thelevel of the bottom of the hub 20. Spanning the hub 20 and the blades 25are the webs 26 which assist in the stirring action of the dolly' in anobvious manner.

In operation the dolly is placed upon the sleeve 16, and slides downthereon until the onion. 1

OF NEWTON, IOWA, 'ASSIGNOR TO THE llflfAYTAG COMPANY, OF

Projecting radially from the hub,

bottom of the collar 20 rests upon the pins 3 against the corrugatedsides thereof, and

the webs 26 assisting in the stirring action. By this means the clothesare operated upon from. below and it is immaterial how full a charge isput into the machine, the operation upon the clothes being the same nomatter whether few or 'many are being washed at one time. Moreover, thetapered bottom of the tub cooperates with the new form of dolly so as tocause the clothes at all times to come into operative engagementtherewith.

' I will now describethe gearing for driv- 13 is interposed between thebearings 27 and the collar28, the bearings 27 being integral upstandingweb 30 which is rounded at its outer end. The bracket 29 is preferablyformed integrally with the plate 8 which [closes thebottom of the tub.

Secured to the frame 1 of the machine by lugs or ears, such as 31, is adepending housing 32 provided with a horizontal bearing 33' in alinementwith the bearing 34, secured to the frame 1 by ears or lugs such as 35.Mounted in the bearings 33 and 34 is the with the bracket 29 which hasthereoh the driving shaft 36 provided at its end with.

the driving belt wheel 37. Keyed to the shaft 36 adjacent its inner endis the beveledpinion 38 having projecting therefrom the clutch tooth 39.Pinned to the end of the shaft is the clutch element 40 having a tooth41 for engagement with the clutch tooth 39. The shaft 36 is providedwith a collar 42 in engagement with which is a fork 43 upon the rockshaft 44. By this means the shaft 36 may be shifted longitudinally toengage or disengage the driving connection with the pinion 38 in anobvious manner. Mounted in a vertical bearing 45 in the housing 32 isthe shaft 46 which is preferably connected with the wringer. Se-

.1 cured to the shaft '46 at its lower end is the beveled crown gear 47in mesh with the pinion 38 whereby the pinion 38 when in drivingconnection with the pulley 37 drives the gear 47 Upon the lower face ofthe gear 47 is secured a journal 48 by means of the bolt 49, washer 50and nut 51. Revolubly mounted upon the journal 48 is the gear 52 in meshwiththe internal gear 53 which forms a depending extension of thehousing 32. It is to be noted that the pitch circle of the gear 52 doesnot intersect the axis of the gear 53. Therefore the gear .52 doesnot'occupy the same relative position during successive revolutions ofthe gear 47 In other words, the planetary pinion contains a number ofteeth unequal to onehalf of the total number of. teeth in themternalgear, and therefore the action is not. I cyclic but a traverse 1s causedbecause the axis of the gear .52 will occupy different positionsuponsuccessive revolutions of the gear 47 The gear 52 has seated thereinand secured thereto the journal 54, which pro- "jects downwardly belowthe plane of the internal gear 53 and forms a crank pin for the pitman55 which, at its other end, terminates in the rack 56 in engagement withthe pinionf14. The rack 56 is provided with inwardly projecting flanges57 at its top and bottom which embrace the pinion 14 and keep , I therack 57 in proper alinement therewith.

The back of the rack57 is inmore or less loose contact with the roundededge of the web 30 hereinabove described, whereby the rack 57 may pivoton the web 30 being kept at all times in engagement with the pinion 14thereby.

In operation and assuming that the rock shaft 44 is rocked to the leftfrom the position shown in Fig. 1 so as to engage the pinion 38, therotation of the driving shaft will continuously drive the beveled crowngear 47 This will cause the gear 52 to be trailed around inside theinternal gear 53 and thus both revolve with the gear 47 and rotate onthe journal 48 on'account of its engagement with the internal gear 53.The

rotation of the gear 52 upon its own axis will, by means of the pitmanconnection, cause the rack 56 to be reciprocated correspondinglyoscillating the shaft 13 and therefore the dolly in the washing machine.

superposed upon this motion, however, is

the revolution of the gear 52 as it is carried around by means'of thecrown gear 47. This latter movement will obviously cause the pitman 55to move backwardand forward periodically while it is reciprocating andwill thus cause a periodic backward and forward rotation of the pinion14 and therefore of the dolly, in addition to the oscilla- Having nowdescribed my invention I claim:

1. A gearing for washing machines comprising a driving shaft, a drivengear, a pinion on said driven gear, an internal gear with which saidpinion meshes and an operating member connected to said pinion, thepitch circle of said pinion not intersecting the axis of the internalgear, whereby said pinion does not keep the same relative positionduring successive revolutions ofthe gear.

.2. A gearing for washing machines comprising a driving shaft, a drivengear, a pinion on said driven gear, an internal gear having a number ofteeth unequal to twice the number of teeth in the pinion with which saidpinion meshes and an operating member connected to said pinion, and aclutch for operatively connecting and disconnecting said shaft and saiddriven gear.

3. In a gearing for washing machines, a shaft, a vertically arrangedreciprocating operating member, gear connections between said shaft andsaid vertically arranged reciprocating operating member including meansto cause the traverse of said operating member in addition'to its normaloperating motion.

4. In a gearing for washing machines, an oscillatory shaft having apinion thereon, a rack bar in mesh with said pinion, means toreciprocate said rack bar including means to cause difierent regions ofsaid bar to engage said pinion during different reciprocations of saidbar.

5. In a gearing for washing machines, an oscillatory shaft, a rotaryshaft, connections between said rotary shaft and said oscillatory shaftincluding ineans whereby a periodic oscillatory movement is given tosaid shaft in addition to the successive oscillations thereof.

6. In a gearing for washing machines, a shaft having a pinion thereon, agear in mesh with said pinion, another gear carried by said first gear,an internal gear in mesh with said second gear and having a number ofteeth unequal to twice the number of teeth thereon and a pitmanconnected to said second gear.

7. In a gearingfor washing machines, a

shaft having a puiion thereon, a gear 1n mesh with said pinion, anothergear carried by said first gear, an internal gear in mesh with saidsecond gear, a pitman, and a shaft adapted to be operated by saidpitman, the pitch circle of said pinion not intersecting the axis ofsaid internal gear.

' 8. In a gearing for washing machines, a

. my name to this specification in the presence of two witnesses.

v HOWARD F. SNYDER.

Witnesses:

A. R. MCKINLEY, H. E. GALUSHA.

